Serialization error when invoking a Webservice throught Weblogic Console

Hi,

I'm developing a webservice that is going to run in Weblogic. This webservice makes a query in a database through an Stored Procedure.

The result of this Query is filled inside a DTO (Data Trasfer Object) and this DTO is send back to the client.

When I run the webservice through Junit Tests, it delivers me the information that I want without problems. But when I invoke this webservice through the weblogic Console, I get the following error:

Exception during processing: weblogic.xml.schema.binding.SerializationException: type mapping lookup failure on class=class com.example.contactos.daos.mapping.oracle.TCdetContacto TypeMapping=TYPEMAPPING SIZE=28

I try to implements Serializable in the TCdetContacto.java code. And get this error. Any suggestion of how to resolve this problem???

Thanks a lot!

Regards,

Samuel.